xref: /linux/arch/riscv/kernel/vmlinux.lds.S (revision 310c33dc7a1278d80ba717b9964bd478d52681e0) 
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2012 Regents of the University of California
4 * Copyright (C) 2017 SiFive
5 */
6
7#define RO_EXCEPTION_TABLE_ALIGN	4
8#define RUNTIME_DISCARD_EXIT
9
10#ifdef CONFIG_XIP_KERNEL
11#include "vmlinux-xip.lds.S"
12#else
13
14#include <asm/pgtable.h>
15#define LOAD_OFFSET KERNEL_LINK_ADDR
16
17#include <asm/vmlinux.lds.h>
18#include <asm/page.h>
19#include <asm/cache.h>
20#include <asm/thread_info.h>
21#include <asm/set_memory.h>
22#include "image-vars.h"
23
24#include <linux/sizes.h>
25OUTPUT_ARCH(riscv)
26ENTRY(_start)
27
28jiffies = jiffies_64;
29
30SECTIONS
31{
32	/* Beginning of code and text segment */
33	. = LOAD_OFFSET;
34	_start = .;
35	HEAD_TEXT_SECTION
36	. = ALIGN(PAGE_SIZE);
37
38	.text : {
39		_text = .;
40		_stext = .;
41		TEXT_TEXT
42		SCHED_TEXT
43		LOCK_TEXT
44		KPROBES_TEXT
45		ENTRY_TEXT
46		IRQENTRY_TEXT
47		SOFTIRQENTRY_TEXT
48		_etext = .;
49	}
50
51	. = ALIGN(SECTION_ALIGN);
52	__init_begin = .;
53	__init_text_begin = .;
54	.init.text : AT(ADDR(.init.text) - LOAD_OFFSET) ALIGN(SECTION_ALIGN) { \
55		_sinittext = .;						\
56		INIT_TEXT						\
57		_einittext = .;						\
58	}
59
60	. = ALIGN(8);
61	__soc_early_init_table : {
62		__soc_early_init_table_start = .;
63		KEEP(*(__soc_early_init_table))
64		__soc_early_init_table_end = .;
65	}
66	__soc_builtin_dtb_table : {
67		__soc_builtin_dtb_table_start = .;
68		KEEP(*(__soc_builtin_dtb_table))
69		__soc_builtin_dtb_table_end = .;
70	}
71	/* we have to discard exit text and such at runtime, not link time */
72	.exit.text :
73	{
74		EXIT_TEXT
75	}
76
77	__init_text_end = .;
78	. = ALIGN(SECTION_ALIGN);
79#ifdef CONFIG_EFI
80	. = ALIGN(PECOFF_SECTION_ALIGNMENT);
81	__pecoff_text_end = .;
82#endif
83	/* Start of init data section */
84	__init_data_begin = .;
85	INIT_DATA_SECTION(16)
86	.init.bss : {
87		*(.init.bss)	/* from the EFI stub */
88	}
89	.exit.data :
90	{
91		EXIT_DATA
92	}
93	PERCPU_SECTION(L1_CACHE_BYTES)
94
95	.rel.dyn : {
96		*(.rel.dyn*)
97	}
98
99	__init_data_end = .;
100
101	. = ALIGN(8);
102	.alternative : {
103		__alt_start = .;
104		*(.alternative)
105		__alt_end = .;
106	}
107	__init_end = .;
108
109	/* Start of data section */
110	_sdata = .;
111	RO_DATA(SECTION_ALIGN)
112	.srodata : {
113		*(.srodata*)
114	}
115
116	. = ALIGN(SECTION_ALIGN);
117	_data = .;
118
119	RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_ALIGN)
120	.sdata : {
121		__global_pointer$ = . + 0x800;
122		*(.sdata*)
123	}
124
125	.rela.dyn : ALIGN(8) {
126		__rela_dyn_start = .;
127		*(.rela .rela*)
128		__rela_dyn_end = .;
129	}
130
131#ifdef CONFIG_RELOCATABLE
132	.data.rel : { *(.data.rel*) }
133	.got : { *(.got*) }
134	.plt : { *(.plt) }
135	.dynamic : { *(.dynamic) }
136	.dynsym : { *(.dynsym) }
137	.dynstr : { *(.dynstr) }
138	.hash : { *(.hash) }
139	.gnu.hash : { *(.gnu.hash) }
140#endif
141
142#ifdef CONFIG_EFI
143	.pecoff_edata_padding : { BYTE(0); . = ALIGN(PECOFF_FILE_ALIGNMENT); }
144	__pecoff_data_raw_size = ABSOLUTE(. - __pecoff_text_end);
145	__pecoff_data_raw_end = ABSOLUTE(.);
146#endif
147
148	/* End of data section */
149	_edata = .;
150
151	BSS_SECTION(PAGE_SIZE, PAGE_SIZE, 0)
152
153#ifdef CONFIG_EFI
154	. = ALIGN(PECOFF_SECTION_ALIGNMENT);
155	__pecoff_data_virt_size = ABSOLUTE(. - __pecoff_text_end);
156	__pecoff_data_virt_end = ABSOLUTE(.);
157#endif
158	_end = .;
159
160	STABS_DEBUG
161	DWARF_DEBUG
162	ELF_DETAILS
163	.riscv.attributes 0 : { *(.riscv.attributes) }
164
165	DISCARDS
166}
167#endif /* CONFIG_XIP_KERNEL */
168